17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*23310c00Skeerthi * Common Development and Distribution License (the "License").
6*23310c00Skeerthi * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate
227c478bd9Sstevel@tonic-gate /*
23*23310c00Skeerthi * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate #include <stdio.h>
287c478bd9Sstevel@tonic-gate #include <stdlib.h>
297c478bd9Sstevel@tonic-gate #include <stdarg.h>
307c478bd9Sstevel@tonic-gate #include <libintl.h>
317c478bd9Sstevel@tonic-gate #include <signal.h>
327c478bd9Sstevel@tonic-gate #include <errno.h>
337c478bd9Sstevel@tonic-gate #include <fcntl.h>
347c478bd9Sstevel@tonic-gate #include <unistd.h>
357c478bd9Sstevel@tonic-gate #include <string.h>
367c478bd9Sstevel@tonic-gate #include <strings.h>
377c478bd9Sstevel@tonic-gate #include <syslog.h>
387c478bd9Sstevel@tonic-gate #include <sys/types.h>
397c478bd9Sstevel@tonic-gate #include <sys/socket.h>
407c478bd9Sstevel@tonic-gate #include <sys/file.h>
417c478bd9Sstevel@tonic-gate #include <netinet/in.h>
427c478bd9Sstevel@tonic-gate #include "netpr.h"
437c478bd9Sstevel@tonic-gate
447c478bd9Sstevel@tonic-gate #define TIMEOUT 1
457c478bd9Sstevel@tonic-gate
467c478bd9Sstevel@tonic-gate static int netpr_send_message(int, char *, ...);
477c478bd9Sstevel@tonic-gate static int xfer_cfAfile(int, char *, char *, uint);
487c478bd9Sstevel@tonic-gate
497c478bd9Sstevel@tonic-gate int
bsd_print(int sockfd,caddr_t pa,np_bsdjob_t * bsdjob)507c478bd9Sstevel@tonic-gate bsd_print(int sockfd, caddr_t pa, np_bsdjob_t * bsdjob)
517c478bd9Sstevel@tonic-gate {
527c478bd9Sstevel@tonic-gate int filesize;
537c478bd9Sstevel@tonic-gate int xfer;
547c478bd9Sstevel@tonic-gate int net;
557c478bd9Sstevel@tonic-gate
567c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "bsd_print");
577c478bd9Sstevel@tonic-gate
587c478bd9Sstevel@tonic-gate filesize = bsdjob->np_data->np_data_size;
597c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "filesize is %d", filesize);
607c478bd9Sstevel@tonic-gate
617c478bd9Sstevel@tonic-gate
627c478bd9Sstevel@tonic-gate if (netpr_send_message(sockfd, "%c%s\n", XFER_REQUEST,
637c478bd9Sstevel@tonic-gate bsdjob->np_printer) != 0) {
647c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_SEND_RESPONSE);
657c478bd9Sstevel@tonic-gate }
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate /*
687c478bd9Sstevel@tonic-gate * control file
697c478bd9Sstevel@tonic-gate */
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate if (bsdjob->np_print_order == CONTROL_FIRST) {
727c478bd9Sstevel@tonic-gate if ((xfer_cfAfile(sockfd, bsdjob->np_cfAfile,
737c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilename,
747c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilesize)) != 0) {
757c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
767c478bd9Sstevel@tonic-gate gettext("Netpr: Error sending control file\n"));
777c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "Error sending control file");
787c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_UNKNOWN);
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate }
817c478bd9Sstevel@tonic-gate }
827c478bd9Sstevel@tonic-gate
837c478bd9Sstevel@tonic-gate /* send msg - get ready for transfer */
847c478bd9Sstevel@tonic-gate
857c478bd9Sstevel@tonic-gate if ((netpr_send_message(sockfd, "%c%d %s\n", XFER_DATA, filesize,
867c478bd9Sstevel@tonic-gate bsdjob->np_data->np_dfAfilename)) != 0) {
877c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_SEND_RESPONSE);
887c478bd9Sstevel@tonic-gate }
897c478bd9Sstevel@tonic-gate
907c478bd9Sstevel@tonic-gate /*
917c478bd9Sstevel@tonic-gate * send the file
927c478bd9Sstevel@tonic-gate */
937c478bd9Sstevel@tonic-gate
947c478bd9Sstevel@tonic-gate if ((xfer = xfer_file(sockfd, pa, filesize, bsdjob->np_timeout)) != 0) {
957c478bd9Sstevel@tonic-gate return (xfer);
967c478bd9Sstevel@tonic-gate }
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate /* send msg - done */
997c478bd9Sstevel@tonic-gate if ((net = netpr_send_message(sockfd, "", NULL)) != 0) {
1007c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
1017c478bd9Sstevel@tonic-gate gettext("Netpr: network error transfering %s returns: %d\n"),
1027c478bd9Sstevel@tonic-gate bsdjob->np_filename, net);
1037c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG,
1047c478bd9Sstevel@tonic-gate "network error transfering %s returns: %d",
1057c478bd9Sstevel@tonic-gate bsdjob->np_filename, net);
1067c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_WRITE_FAILED);
1077c478bd9Sstevel@tonic-gate }
1087c478bd9Sstevel@tonic-gate
1097c478bd9Sstevel@tonic-gate /*
1107c478bd9Sstevel@tonic-gate * control file
1117c478bd9Sstevel@tonic-gate */
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate if (bsdjob->np_print_order == DATA_FIRST) {
1147c478bd9Sstevel@tonic-gate if ((xfer_cfAfile(sockfd, bsdjob->np_cfAfile,
1157c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilename,
1167c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilesize)) != 0) {
1177c478bd9Sstevel@tonic-gate
1187c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
1197c478bd9Sstevel@tonic-gate gettext("Netpr: Error sending control file\n"));
1207c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "Error sending control file");
1217c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_UNKNOWN);
1227c478bd9Sstevel@tonic-gate }
1237c478bd9Sstevel@tonic-gate }
1247c478bd9Sstevel@tonic-gate
1257c478bd9Sstevel@tonic-gate return (0);
1267c478bd9Sstevel@tonic-gate }
1277c478bd9Sstevel@tonic-gate
1287c478bd9Sstevel@tonic-gate int
xfer_file(int sockfd,caddr_t pa,int filesize,int seed)1297c478bd9Sstevel@tonic-gate xfer_file(int sockfd, caddr_t pa, int filesize, int seed)
1307c478bd9Sstevel@tonic-gate {
1317c478bd9Sstevel@tonic-gate int ctr;
1327c478bd9Sstevel@tonic-gate int timeout;
1337c478bd9Sstevel@tonic-gate int nw;
1347c478bd9Sstevel@tonic-gate int error_msg = 0;
1357c478bd9Sstevel@tonic-gate int pause = 0;
1367c478bd9Sstevel@tonic-gate
1377c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file");
1387c478bd9Sstevel@tonic-gate
1397c478bd9Sstevel@tonic-gate /* send file */
1407c478bd9Sstevel@tonic-gate ctr = filesize;
1417c478bd9Sstevel@tonic-gate timeout = seed = seed ? seed : 10;
1427c478bd9Sstevel@tonic-gate
1437c478bd9Sstevel@tonic-gate while (ctr > 0) {
1447c478bd9Sstevel@tonic-gate
1457c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file: write while loop => ctr = %d", ctr);
1467c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file: timeout = %d", timeout);
1477c478bd9Sstevel@tonic-gate
1487c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler);
149*23310c00Skeerthi (void) alarm(10);
1507c478bd9Sstevel@tonic-gate nw = write(sockfd, pa, ctr);
1517c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file: write while loop => nw = %d", nw);
1527c478bd9Sstevel@tonic-gate (void) alarm(0);
1537c478bd9Sstevel@tonic-gate if ((nw == 0) || (nw < 0)) {
1547c478bd9Sstevel@tonic-gate if (timeout < (seed * 4)) {
1557c478bd9Sstevel@tonic-gate (void) sleep(timeout);
1567c478bd9Sstevel@tonic-gate timeout *= 2;
1577c478bd9Sstevel@tonic-gate } else if (timeout == (seed * 4)) {
1587c478bd9Sstevel@tonic-gate (void) sleep(timeout);
1597c478bd9Sstevel@tonic-gate timeout *= 2;
1607c478bd9Sstevel@tonic-gate
1617c478bd9Sstevel@tonic-gate /*
1627c478bd9Sstevel@tonic-gate * Send message to user once
1637c478bd9Sstevel@tonic-gate */
1647c478bd9Sstevel@tonic-gate if (error_msg == 0) {
1657c478bd9Sstevel@tonic-gate error_msg++;
1667c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG,
1677c478bd9Sstevel@tonic-gate gettext("Printer not accepting input;"
1687c478bd9Sstevel@tonic-gate "possibly offline or out of paper."));
1697c478bd9Sstevel@tonic-gate }
1707c478bd9Sstevel@tonic-gate
1717c478bd9Sstevel@tonic-gate } else if (timeout > (seed * 4)) {
1727c478bd9Sstevel@tonic-gate (void) sleep(timeout);
1737c478bd9Sstevel@tonic-gate if (pause++ > 3)
1747c478bd9Sstevel@tonic-gate timeout = (seed * 10);
1757c478bd9Sstevel@tonic-gate }
1767c478bd9Sstevel@tonic-gate
1777c478bd9Sstevel@tonic-gate } else {
1787c478bd9Sstevel@tonic-gate ctr -= nw;
1797c478bd9Sstevel@tonic-gate pa += nw;
1807c478bd9Sstevel@tonic-gate if (error_msg) {
1817c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current");
1827c478bd9Sstevel@tonic-gate error_msg = 0;
1837c478bd9Sstevel@tonic-gate pause = 0;
1847c478bd9Sstevel@tonic-gate }
1857c478bd9Sstevel@tonic-gate timeout = seed;
1867c478bd9Sstevel@tonic-gate }
1877c478bd9Sstevel@tonic-gate }
1887c478bd9Sstevel@tonic-gate
1897c478bd9Sstevel@tonic-gate return (E_SUCCESS);
1907c478bd9Sstevel@tonic-gate }
1917c478bd9Sstevel@tonic-gate
1927c478bd9Sstevel@tonic-gate static int
xfer_cfAfile(int sockfd,char * cfAfile,char * cfAname,uint size)1937c478bd9Sstevel@tonic-gate xfer_cfAfile(int sockfd, char * cfAfile, char * cfAname, uint size)
1947c478bd9Sstevel@tonic-gate {
1957c478bd9Sstevel@tonic-gate int ctr;
1967c478bd9Sstevel@tonic-gate caddr_t pa;
1977c478bd9Sstevel@tonic-gate int nw = 0;
1987c478bd9Sstevel@tonic-gate int timeout;
1997c478bd9Sstevel@tonic-gate int printererr;
2007c478bd9Sstevel@tonic-gate
2017c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_cfAfile");
2027c478bd9Sstevel@tonic-gate
2037c478bd9Sstevel@tonic-gate if ((netpr_send_message(sockfd, "%c%d %s\n", XFER_CONTROL,
2047c478bd9Sstevel@tonic-gate size, cfAname)) != 0) {
2057c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_MSG_FAILED);
2067c478bd9Sstevel@tonic-gate }
2077c478bd9Sstevel@tonic-gate
2087c478bd9Sstevel@tonic-gate /* send the control file */
2097c478bd9Sstevel@tonic-gate pa = cfAfile;
2107c478bd9Sstevel@tonic-gate ctr = size;
2117c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_cfAfile : cfAfile %s", pa);
2127c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_cfAfile : size %d", size);
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate /* send control file */
2157c478bd9Sstevel@tonic-gate timeout = TIMEOUT;
2167c478bd9Sstevel@tonic-gate printererr = 0;
2177c478bd9Sstevel@tonic-gate while (ctr > 0) {
2187c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler);
2197c478bd9Sstevel@tonic-gate (void) alarm(2);
2207c478bd9Sstevel@tonic-gate nw = write(sockfd, pa, size);
2217c478bd9Sstevel@tonic-gate (void) alarm(0);
2227c478bd9Sstevel@tonic-gate if (nw <= 0) {
2237c478bd9Sstevel@tonic-gate if (timeout < 16) {
2247c478bd9Sstevel@tonic-gate (void) sleep(timeout);
2257c478bd9Sstevel@tonic-gate timeout *= 2;
2267c478bd9Sstevel@tonic-gate } else if (timeout == 16) {
2277c478bd9Sstevel@tonic-gate /* talk with the printer and see what's happening */
2287c478bd9Sstevel@tonic-gate /* send message back to caller */
2297c478bd9Sstevel@tonic-gate (void) sleep(timeout);
2307c478bd9Sstevel@tonic-gate timeout *= 2;
2317c478bd9Sstevel@tonic-gate printererr = 1;
2327c478bd9Sstevel@tonic-gate
2337c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG,
2347c478bd9Sstevel@tonic-gate gettext("Printer not accepting input;"
2357c478bd9Sstevel@tonic-gate "possibly offline or out of paper."));
2367c478bd9Sstevel@tonic-gate
2377c478bd9Sstevel@tonic-gate } else if (timeout > 16) {
2387c478bd9Sstevel@tonic-gate (void) sleep(timeout);
2397c478bd9Sstevel@tonic-gate }
2407c478bd9Sstevel@tonic-gate }
2417c478bd9Sstevel@tonic-gate ctr -= nw;
2427c478bd9Sstevel@tonic-gate pa += nw;
2437c478bd9Sstevel@tonic-gate }
2447c478bd9Sstevel@tonic-gate
2457c478bd9Sstevel@tonic-gate if (printererr == 1) {
2467c478bd9Sstevel@tonic-gate (void) fprintf(stderr, gettext("Printer status ok\n"));
2477c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current");
2487c478bd9Sstevel@tonic-gate }
2497c478bd9Sstevel@tonic-gate
2507c478bd9Sstevel@tonic-gate
2517c478bd9Sstevel@tonic-gate /* send msg - done */
2527c478bd9Sstevel@tonic-gate if (netpr_send_message(sockfd, "", NULL) != 0) {
2537c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_MSG_FAILED);
2547c478bd9Sstevel@tonic-gate }
2557c478bd9Sstevel@tonic-gate
2567c478bd9Sstevel@tonic-gate return (0);
2577c478bd9Sstevel@tonic-gate }
2587c478bd9Sstevel@tonic-gate
2597c478bd9Sstevel@tonic-gate /*
2607c478bd9Sstevel@tonic-gate * netpr_response() reads in a byte from the network printer
2617c478bd9Sstevel@tonic-gate */
2627c478bd9Sstevel@tonic-gate static int
netpr_response(int nd)2637c478bd9Sstevel@tonic-gate netpr_response(int nd)
2647c478bd9Sstevel@tonic-gate {
2657c478bd9Sstevel@tonic-gate char c;
2667c478bd9Sstevel@tonic-gate int msg_given = 0;
2677c478bd9Sstevel@tonic-gate int firstloop = 0;
2687c478bd9Sstevel@tonic-gate
2697c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_response");
2707c478bd9Sstevel@tonic-gate
2717c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler);
2727c478bd9Sstevel@tonic-gate (void) alarm(2);
2737c478bd9Sstevel@tonic-gate while (1) {
2747c478bd9Sstevel@tonic-gate errno = 0;
2757c478bd9Sstevel@tonic-gate if ((read(nd, &c, 1) != 1)) {
2767c478bd9Sstevel@tonic-gate
2777c478bd9Sstevel@tonic-gate if (firstloop == 0) {
2787c478bd9Sstevel@tonic-gate (void) alarm(0);
2797c478bd9Sstevel@tonic-gate firstloop++;
2807c478bd9Sstevel@tonic-gate }
2817c478bd9Sstevel@tonic-gate
2827c478bd9Sstevel@tonic-gate if (errno == EINTR) {
2837c478bd9Sstevel@tonic-gate if (msg_given == 0) {
2847c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG,
2857c478bd9Sstevel@tonic-gate gettext("Printer not responding;"
2867c478bd9Sstevel@tonic-gate "Either warming up or needs attention"));
2877c478bd9Sstevel@tonic-gate msg_given++;
2887c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG,
2897c478bd9Sstevel@tonic-gate "read hanging in netpr_response: %m");
2907c478bd9Sstevel@tonic-gate }
2917c478bd9Sstevel@tonic-gate
2927c478bd9Sstevel@tonic-gate } else {
2937c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG,
2947c478bd9Sstevel@tonic-gate "read in netpr_response failed: %m");
2957c478bd9Sstevel@tonic-gate return (NETWORK_READ_RESPONSE_FAILED);
2967c478bd9Sstevel@tonic-gate }
2977c478bd9Sstevel@tonic-gate
2987c478bd9Sstevel@tonic-gate } else {
2997c478bd9Sstevel@tonic-gate if (c) {
3007c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG,
3017c478bd9Sstevel@tonic-gate "Printer returned error: %m");
3027c478bd9Sstevel@tonic-gate return (NETWORK_PRINTER_REFUSED_CONN);
3037c478bd9Sstevel@tonic-gate } else {
3047c478bd9Sstevel@tonic-gate if (msg_given)
3057c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current");
3067c478bd9Sstevel@tonic-gate return (0);
3077c478bd9Sstevel@tonic-gate }
3087c478bd9Sstevel@tonic-gate }
3097c478bd9Sstevel@tonic-gate }
3107c478bd9Sstevel@tonic-gate
3117c478bd9Sstevel@tonic-gate }
3127c478bd9Sstevel@tonic-gate
3137c478bd9Sstevel@tonic-gate static int
netpr_send_message(int nd,char * fmt,...)3147c478bd9Sstevel@tonic-gate netpr_send_message(int nd, char *fmt, ...)
3157c478bd9Sstevel@tonic-gate {
3167c478bd9Sstevel@tonic-gate char buf[BUFSIZ];
3177c478bd9Sstevel@tonic-gate int ctr;
3187c478bd9Sstevel@tonic-gate char * pa;
3197c478bd9Sstevel@tonic-gate va_list ap;
3207c478bd9Sstevel@tonic-gate int timeout = 1;
3217c478bd9Sstevel@tonic-gate int nw;
3227c478bd9Sstevel@tonic-gate int err_msg = 0;
3237c478bd9Sstevel@tonic-gate
3247c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_send_message");
3257c478bd9Sstevel@tonic-gate va_start(ap, fmt);
3267c478bd9Sstevel@tonic-gate (void) vsnprintf(buf, sizeof (buf), fmt, ap);
3277c478bd9Sstevel@tonic-gate va_end(ap);
3287c478bd9Sstevel@tonic-gate
3297c478bd9Sstevel@tonic-gate pa = buf;
3307c478bd9Sstevel@tonic-gate ctr = (strlen(buf) != 0) ? strlen(buf) : 1;
3317c478bd9Sstevel@tonic-gate
3327c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_send_message : ctr = %d", ctr);
3337c478bd9Sstevel@tonic-gate while (ctr > 0) {
3347c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler);
3357c478bd9Sstevel@tonic-gate (void) alarm(2);
3367c478bd9Sstevel@tonic-gate nw = write(nd, pa, ctr);
3377c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_send_message : nw = %d", nw);
3387c478bd9Sstevel@tonic-gate (void) alarm(0);
3397c478bd9Sstevel@tonic-gate
3407c478bd9Sstevel@tonic-gate if (nw <= 0) {
3417c478bd9Sstevel@tonic-gate if (timeout < 16) {
3427c478bd9Sstevel@tonic-gate (void) sleep(timeout);
3437c478bd9Sstevel@tonic-gate timeout *= 2;
3447c478bd9Sstevel@tonic-gate } else if (timeout == 16) {
3457c478bd9Sstevel@tonic-gate (void) sleep(timeout);
3467c478bd9Sstevel@tonic-gate timeout *= 2;
3477c478bd9Sstevel@tonic-gate if (err_msg == 0) {
3487c478bd9Sstevel@tonic-gate err_msg++;
3497c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG,
3507c478bd9Sstevel@tonic-gate gettext("Printer not accepting input;"
3517c478bd9Sstevel@tonic-gate "possibly offline or out of paper."));
3527c478bd9Sstevel@tonic-gate }
3537c478bd9Sstevel@tonic-gate } else
3547c478bd9Sstevel@tonic-gate (void) sleep(timeout);
3557c478bd9Sstevel@tonic-gate } else {
3567c478bd9Sstevel@tonic-gate ctr -= nw;
3577c478bd9Sstevel@tonic-gate pa += nw;
3587c478bd9Sstevel@tonic-gate if (err_msg)
3597c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current");
3607c478bd9Sstevel@tonic-gate }
3617c478bd9Sstevel@tonic-gate }
3627c478bd9Sstevel@tonic-gate
3637c478bd9Sstevel@tonic-gate return (netpr_response(nd));
3647c478bd9Sstevel@tonic-gate }
3657c478bd9Sstevel@tonic-gate
3667c478bd9Sstevel@tonic-gate /*
3677c478bd9Sstevel@tonic-gate * null() is to be used as a signal handler that does nothing. It is used in
3687c478bd9Sstevel@tonic-gate * place of SIG_IGN, because we want the signal to be delivered and
3697c478bd9Sstevel@tonic-gate * interupt the current system call.
3707c478bd9Sstevel@tonic-gate */
3717c478bd9Sstevel@tonic-gate /*ARGSUSED*/
3727c478bd9Sstevel@tonic-gate void
null_sighandler(int i)3737c478bd9Sstevel@tonic-gate null_sighandler(int i)
3747c478bd9Sstevel@tonic-gate {
3757c478bd9Sstevel@tonic-gate }
376